Finding the Fourth Proportional to 1,419,942,528.82, 2,130,142,663.38 and 437,368,611.16
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Solution
The fourth proportional to 1,419,942,528.82, 2,130,142,663.38 and 437,368,611.16 is: 656,123,412.99
Step by Step Solution
- Step 1: Write the proportion equation
1,419,942,528.82 : 2,130,142,663.38 = 437,368,611.16 : x - Step 2: Convert to fraction form
1,419,942,528.82/2,130,142,663.38 = 437,368,611.16/x - Step 3: Cross multiply
1,419,942,528.82x = 2,130,142,663.38 × 437,368,611.16 - Step 4: Simplify right side
1,419,942,528.82x = 931,657,538,255,174,144 - Step 5: Solve for x
x = 931,657,538,255,174,144/1,419,942,528.82 - Step 6: Final answer
x = 656,123,412.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.